Coin-controlled switch



Oct. 11, 1949. N. M. JACKSON 2,484,711

COIN CONTROLLED SWITCH Filed May 15, 1944 mam/14m M. JAG/(501V:

Patented Oct. 11, 1949 2,484,711 Y COIN -CONTROLLED SWITCH Norman M. Jackson,

Washington,

D. 0., assignor of one-half to Walter Johnson, Washington, D. 0.

Application May 15, 1944, Serial N0. 535,686

1 Claim.

This invention relates to a coin controlled switch and while it is particularly adapted for use as an element of a coin controlled battery charging apparatus of the type disclosed in my copending application Ser. No. 541,627, filed June 22, 1944, and now abandoned, it is to be understood that it may be used wherever its construction adapts it for use in a machine or other apparatus which is to be operated only after a predetermined number of coins have been deposited in a coin chute.

One object of the invention i to provide a coin controlled chute adapted to be mounted through a wall of a cabinet and having a switch carried 'by its lower portion within the cabinet and so arranged and constructed that when a coin is deposited in the chute the coin will cause the switch to be closed.

Another object of the invention is to provide a device of this character wherein the switch is mounted against a side wall of the chute and provided with a movable jaw having a stem or plunger extending into the chute to such an extent that when a coin is deposited in the chute it will force the plunger or stem outwardly and shift the movable contact into engagement with the stationary contact.

Another object of the invention is to provide a coin controlled device which is simple in construction, very efiicient in operation, and capable of being manufactured at small cost.

The invention is illustrated in the accompanying drawings wherein:

Figure 1 is a transverse sectional view of the coin controlled mechanism constructed according to an embodiment of my invention,

Figure 2 is a sectional view taken along line 2-2 of Figure 1.

The coin controlled device constituting the subject matter of this invention includes a coin chute I which may be formed of sheet metal or other suitable material.

At a side of the coin chute is mounted switch box I3. While one switch box I3 has been shown in the drawings, it will be understood that additional boxes may be provided according to the number of coins I5 which it is intended to have deposited in the chute in order to start apparatus controlled thereby in motion.

The switch box is provided with a vertically disposed plate I6 through which passes the stem or plunger I! of a movable contact I8. The stem also slidably passes through the side wall of the chute and within the box carries a collar I9 for engagement by a spring 20 so that the movable contact will be normally held out of contact with a companion stationary contact 2|. The stationary contact is shown in the form of a plate mounted upright in the box in position for engagement by the movable contact and the stationary contact is insulated from the box. The end of the stem I? which protrudes into the coin chute is bevelled, as shown at 25, or may be rounded, and from an inspection of Figure 2 it will be seen that when coins are deposited in the chute and drop downwardly therein, they will engage the protruding end of the tem and shift the stem longitudinally in opposition to the spring 20 and cause the movable contact to be brought into engagement with the stationary contact where it will be held until the coins drop from the chute.

What I claim is:

In a coin controlled switch box at a side of contact in said box,

device, a coin chute, a said chute, a stationary a guide in said box, a movable contact, a stem for the movable contact slidable through the guide and the inner side of the box with its end passing through registering openings formed in the box and a wall of the chute, a collar about said stem, and a spring about said stem confined between the guide and the collar and yieldably holding the stem in its normal position with its end protruding into the chute, said stem having a bevelled inner end whereby a coin deposited in the chute will move the stem outwardly and move the movable contact into engagement with the stationary contact.

NORMAN M. JACKSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,498,548 Babson June 24, 1924 1,973,275 Hughes Sept. 11, 1934 FOREIGN PATENTS Number Country Date 647,726 France July 31, 1928 

